Vacuum cleaner base



FIG. 1 is a front and right-side perspective view of a vacuum cleaner base showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof. 

CLAIM The ornamental design for a vacuum cleaner base, as shown and described. 